Improvement in padlocks



Patented Oct. 13,1874.

Wm mm rTED STATES PATENT OEEICE.

JAMES ADAMS, OF CHESTER, PENNSYLVANIA.

IMPROVEMENT IN PADLOCKS.

Specification forming part of Letters Patent No. 155,912, dated October 13, 1874; application filed September 16, 1874.

To all 'whom it may concern:

Be it known that I, JAMES ADAMS, of Chester, in the county of Delaware and State of Pennsylvania, have invented certain new and useful Improvements in Locks; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon, which forms part of this specification.

Ihe nature of my invention consists in casting the body or frame with the hasp or ring in it, substantially as hereinafter set forth.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawing, in which- Figure lis a longitudinal section of my lock through the line w fr, Fig. 2. Eig. 2 is a transverse vertical section through the line y y, Fig. l. Fig. 3 is a side view of the same. Figs. 4 and 5 show the construction of the key.

The casing of my lock is composed of a rectangular box, A, from the upper end of which, on opposite sides, project two hollow curved arms, B B. The bail of the lock is a round ring, C, passed through the curved arms B and upper part of the box A, and it has a part cut open, as shown at a. In manufacturing the lock, the ring C is coated and the case A B cast around it, when the coating is worked out, leaving the ring free to revolve. The bottom of the boX A is left open,

and is finally closed by a plug, b, riveted therein, from which plug a staple, d, projects, to allow the lock to be suspended by a chain. On one side of the box A is the key-hole e, and opposite the saine is the pin f. Within the box is placed a bent spring, D, the ends of which extend upward, one on each side of the pin f, and spring inward, so that when the ring C is properly turned the ends of the spring will enter the aperture a, therein, and prevent the movement of the ring. The key G is what is known as a barrel-key, and pro' vided with two wings, z' i. When the key is inserted these wings pass in between the ends of the spring D, and, by turning the key, the wings force the ends of the spring outward, thus allowing the ring C to be turned so as to disclose the aperture a therein.

This lock may be made of steel or malleable iron, and can be manufactured cheaply. It is strong and durable, and not liable'to get out of order.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In a padlock, the combination of the ring C, having the opening a, with the case A B, constructed as described, and cast around the ring, substantially as herein set forth.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

JAMES ADAMS. Witnesses:

JNO. E. CLYDE, J AMES TAYLOR. 

